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. EJNITED STATES PATENT FFICEQ ARTHUR HARRIS nn GEORGE M. CLARK, OF oHIo eo, ILLINOIS, ASSIGNORS TO J. MQGREGOR ADAMS, OF SAME PLAGE.

JLOCOMOTIVE HEAD-HLIGHT.

SPECIFICATION forming part of Letters Patent No. 272,247, dated February 13, 1883,

I Application filed November 28, 1885.2. (No model.)

To all whom it may concern: I from the main reflector B will be received upon Be it known that we, ARTHUR HARRIS and the reflecting-surfaces c a through the open- GEORGE M. CLARK, both of Chicago, in the ings d d of the rim,and carried back through county of (look and State of Illinois, have inthe openings (1 d of the case A to the trans- 5 vented certain Improvements in Locomotive parent plates D, thus exhibiting the number Head-Lights, of which the following is a specior signal. The opaque cylinder b shuts off the fication. light insufficient in itself for purposes of sig- This invention relates to means for displaynaling, which would otherwise be thrown diing. signals on locomotive head-lights; and, reclly through the transparent plates D; The 1a briefly considered, it consists in casting light brilliant rays of lightthrown backward from from the lamp and main reflector to boxes atthe the reflectors are therefore solely relied on to respective sides of the front ofthe head-light or illuminate the plates, the concentration oflight lantern, thehoxes communicating with theintethereon from one direction only producing very rior of the head-light through openings in the effective results. These can only be attained 6 1 rim, and carrying the light thence by reflecby projecting the reflectors forward ofthe front tion back through openings in the front of the Wall of the lantern, which is done by the emcase to transparent plates inserted in the reployment of the boxes 0 G. The reflectingspective sides thereof bearing signal numbers surfaces 0 are thus made to extend Within the or marks. area of the front of the main reflector B, and 2 The invention further consists in providing receive the full power of the light emitted a cylindrical opaque casing for the chimney, therefrom. The light is reflected back upon for a purpose hereinafter specified. the plates D, flooding their entire area, and is In the accompanying drawings, Figure l is not dimmed or diminished by secondary refleca front view of our improved head-light. Fig. tion, or the interposition of any object'to divert 25 2 is a side view of the same, partially in secorchange the direction'of the rays.-

tion. Fig. 3 is a sectional plan of a portion of The signal-plates may be made removable'in the head-light on the line m 00 of Fig. l. order to permit the use of different numbers or Similar letters of reference indicate similar colors. parts in the respective figures. This invention may be added to head-lights 8o 0 A is the outer casing of the head-light or in ordinary use.

lantern. The rim is represented by ct. We disclaim the invention set forth in Pat- B is the main reflector. Above the hole cut out No. 225,299, granted March 9, 1880, to in the reflector for the passage of the chimney Michael Nicholson, and also that described in is a cylinder, 1), made of metal or other suit- Patent No. 209,405, granted October 29,1878, 5 able opaque material, which cylinder may be to William Kelley, reissued February 18, 1879,

formed in one or two parts, and attached to, under No. 8,591, which patents cover the cutas a part of, the reflector B or made separate ting of the rim. We also disclaim the cutting therefrom. The upper portion of the cylinder of the front of the outer case, which is shown is provided with a box, b, having a front openand claimed in PatentNo. 234,410, granted No- 0 o ing, 12, through which, the heat and smoke vember 16, 1880, to said Kelley.

from the lamp escape. We claim as our invention- At the front of the case A, at each side 1. In a locomotive head-light, the coinbinathereof, is placed a box, 0, the front walls of tion of a reflector and opaque chimney-casing, which boxes are on their inner sides provided having an opening for the escape of heat and 5 45 with reflecting-surfaces c c. Parts of the rim products of combustion, the base ofthe opaque are removed where the boxes 0 unite with the chimney-casing closing the opening in the rerim, as shown at d in Fig. 3. At each side of fiector through which thechimney passes, subthe casing A, in practically the same plane as stantially as set forth. that occupied by the boxes 0 (l, is placed a 2. The combination, in a locomotive head- 10c 50 transparent plate, D, on which plate is painted, light, of a perforated reflector, an opaque chimthe signal number or mark. Light thrown ney casing whose base orlower edge closes the perforation in the reflector, and a box having case, combined with reflecting-boxes having an opening for the escape of heat and products of combustion from the lamp, substantially as set forth.

3. The combination, in a locomotive headlight, of an outer case having transparent signal-plates inserted in its sides, and boxes having openings uniting with openings in the rim and front of the case, and provided with interior reflectors, whereby the reflecting-surfaces are projected or carried forward of the front of the outer case, and the light is cast hack and away from the boxes to the signal-plates, substantially as set forth.

4. In a locomotive head-light, an outer case having front perforations and a perforated rim, and traspurent plates set in the sides of said openings uniting with the openings in the case and rim, respectively, and adapted to receive light through the rim-openings, and cast back the light from a plane forward of the front of the outer case, through the openings in the case,to the transparentplates forsignalingpun poses, substantially as set forth.

In testimony whereof we have hereunto set our hands and seals this 22d day of November, 1882.

ARTHUR HARRIS. L. S. GEO. M. CLARK. L. S.

Witnesses LAURENCE BROWN, Osuonnn SAMPSON. 

